TY  - BOOK
AU  - Ascroft,Joseph R.
TI  - The fertility behavior differential: a methodological  innovation in fertility research
AV  - EAF QTO H31.N28 No.118 
PY  - 1971///
CY  - Nairobi
PB  - University of Nairobi
KW  - Fertility
KW  - Society
KW  - Reproduction
KW  - Human
ER  -